The train ride up to Jungfraujoch (3454m) is one of Switzerland's classic experiences. Following an audacious route right through the heart of the Eiger, the railway was completed in 1912 and today carries more than two million people a year through some of Europe's most phenomenal high Alpine scenery.
The icy wilderness of swirling glaciers and 4000m turrets that unfolds up top is staggeringly beautiful. Outside there are views of the moraine-streaked 23km-long tongue of the Aletsch Glacier, the longest glacier in the Alps and a Unesco World Heritage Site. The views across rippling peaks stretch as far as the Black Forest in Germany on cloudless days. Inside the adjacent Sphinx weather station you'll find ice sculptures, restaurants, indoor viewpoints and souvenir shops.